.header{
  font-size: 16px;
  font-weight:500;
  // height: 80px;
  position: relative;
  min-width: 560px;
  background-color: white;
  .header-user{
    text-align: right;
    margin-right: 10px;
    margin-bottom: 5px;
  }
  .header-date{
    float: left;
    margin-left: 10px;
  }
  .out-msg{
    background-color: yellow;
  }
  .header-line{
    width: 100%;
    height: 1px;
    background-color:#1DA57A;
  }
  .header-r{
    float: right;
    margin-right: 20px;
    margin-top: 5px;
    right: 0;
  }
  .header-l{
    float: left;
    width: 150px;
    text-align: center;
    margin-top: 5px;
    &::after{
      width: 0;
      height: 0;
      content: '';
      position: absolute;
      border: 15px solid;
      border-color: white transparent  transparent transparent ;
      left: 60px;
      bottom: -30px;
    }
  }
}